Hex keys (also known as Allen wrenches) are useful little tools that are often misunderstood in regard to their usage and purpose. Their name comes from the fact that they have six sides of the same size, and they are inserted into a hole in the bolt or object that they are being used to tighten or loosen.
Hex keys, also known as Allen wrenches, are versatile and handy tools used for tightening and loosening bolts and screws with a hexagonal shape. They are essential tools for mechanics, DIY enthusiasts, and homeowners who need to maintain their equipment and fix things around the house. This guide will provide you with all the information you need to use hex keys like a pro, including the different types, sizes, and how to use them properly.
Types of Hex Keys
There are two main types of hex keys: T-handled and L-handled. T-handled hex keys have a T-shaped handle that provides better leverage and grip. They are ideal for applications where a lot of torque is required. L-handled hex keys have an L-shaped handle that provides a better grip and allows for a more precise application of torque. L-handled hex keys are best for applications where precision is more important than leverage.
Sizes of Hex Keys
Hex keys come in a variety of sizes to fit different sizes of hexagonal bolts and screws. The most common sizes are 0.028 inches, 0.050 inches, 1/16 inch, 5/64 inch, 3/32 inch, 7/64 inch, 1/8 inch, 9/64 inch, 5/32 inch, 3/16 inch, 7/32 inch, 1/4 inch, and 5/16 inch. It is recommended to have a set of hex keys that includes the most commonly used sizes.
How to Use Hex Keys
To use a hex key, simply insert it into the hexagonal-shaped bolt or screw and turn it clockwise to tighten or counterclockwise to loosen. When using a T-handled hex key, apply pressure on the handle and turn it. When using an L-handled hex key, hold the handle in one hand and the key in the other hand and turn.
Tips for Using Hex Keys
- Always make sure to choose the right size hex key for the job. Using the wrong size can strip the bolt or screw, making it impossible to remove.
- Use a light coating of oil on the hex key to reduce friction and make it easier to insert and turn.
- Apply even pressure when turning the hex key to avoid stripping the bolt or screw.
- Use a torque wrench if precise torque is required.
Frequently Asked Questions
Here are some commonly asked questions and answers about hex keys:
Q: What are hex keys used for?
A: Hex keys are used to tighten and loosen bolts and screws with a hexagonal shape. They are essential tools for mechanics, DIY enthusiasts, and homeowners who need to maintain their equipment and fix things around the house.
Q: What are the two main types of hex keys?
A: The two main types of hex keys are T-handled and L-handled. T-handled hex keys have a T-shaped handle that provides better leverage and grip, while L-handled hex keys have an L-shaped handle that provides a better grip and allows for a more precise application of torque.
Q: What are the most common sizes of hex keys?
A: The most common sizes of hex keys are 0.028 inches, 0.050 inches, 1/16 inch, 5/64 inch, 3/32 inch, 7/64 inch, 1/8 inch, 9/64 inch, 5/32 inch, 3/16 inch, 7/32 inch, 1/4 inch, and 5/16 inch.
Q: How do I use a hex key?
A: To use a hex key, simply insert it into the hexagonal-shaped bolt or screw and turn it clockwise to tighten or counterclockwise to loosen. When using a T-handled hex key, apply pressure on the handle and turn it. When using an L-handled hex key, hold the handle in one hand and the key in the other hand and turn.
Q: What tips should I keep in mind when using hex keys?
A: Here are a few tips to keep in mind when using hex keys:
- Always make sure to choose the right size hex key for the job.
- Use a light coating of oil on the hex key to reducing friction.
- Apply even pressure when turning the hex key to avoid stripping the bolt or screw.
- Use a torque wrench if precise torque is required.
Conclusion
In conclusion, hex keys are an essential tool for anyone who needs to tighten and loosen hexagonal bolts and screws. With this guide, you now have a complete understanding of the different types and sizes of hex keys, and how to use them properly. Keep this guide handy, and you’ll be able to use hex keys like a pro in no time!
